package com.atguigu.gulimall.member.interceptor;

import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.common.vo.MemberRespVo;
import org.springframework.stereotype.Component;
import org.springframework.util.AntPathMatcher;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component //加到容器中
public class LoginUserInterceptor implements HandlerInterceptor {

    public static ThreadLocal<MemberRespVo> loginUser = new ThreadLocal<>();
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        String uri = request.getRequestURI();
        ///member/memberreceiveaddress/info/{id}  放行会员member前缀的内部请求
        boolean match = new AntPathMatcher().match("/member/**", uri);
        if(match){
            //如果是  /order/order/status/{orderSn} 的请求，直接放行 避免服务器内部之间的调用被拦截
            return true;
        }

        MemberRespVo attribute = (MemberRespVo) request.getSession().getAttribute(AuthServerConstant.LOGIN_USER);
        if(attribute != null){
            //用户已登录
            //将已登录的用户放到ThreadLocal中，方便其他的线程都能访问
            loginUser.set(attribute);
            return true;
        }else{
            //没登录就去登录
            request.getSession().setAttribute("msg","请先进行登录!");
            response.sendRedirect("http://auth.gulimall.com/login.html");
            return false;
        }
    }
}
